Home / 175,057.20-262,391.40-90,784.80

Finding the Fourth Proportional to 175,057.20, 262,391.40 and 90,784.80

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Solution

The fourth proportional to 175,057.20, 262,391.40 and 90,784.80 is: 136,076.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,057.20 : 262,391.40 = 90,784.80 : x
  2. Step 2: Convert to fraction form
    175,057.20/262,391.40 = 90,784.80/x
  3. Step 3: Cross multiply
    175,057.20x = 262,391.40 × 90,784.80
  4. Step 4: Simplify right side
    175,057.20x = 23,821,150,770.72
  5. Step 5: Solve for x
    x = 23,821,150,770.72/175,057.20
  6. Step 6: Final answer
    x = 136,076.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.